Categories
Ask Chemistry

What is the mechanism for this intramolecular SN1 reaction?

For this question, my professor hinted at an intramolecular reaction, and he asked us to recall the bromonium ion as well. As such, I believe the SMe group attacks the open carbocation when OTs leaves. I think I understand how the left-side enantiomer is formed: SMe attacks the open carbocation, then water attacks from the […]

Categories
Mastering Development

Sharing array of objects with Python multiprocessing

For this question, I refer to the example in Python docs discussing the "use of the SharedMemory class with NumPy arrays, accessing the same numpy.ndarray from two distinct Python shells". A major change that I’d like to implement is manipulate array of class objects rather than integer values as I demonstrate below. import numpy as […]

Categories
Ask Biology

Translating Sequence

For this question, are we trying to identify an AUG region?

Categories
Ask Biology

Translating Sequence

For this question, are we trying to identify an AUG region?

Categories
Ask Biology

Translating Sequence

For this question, are we trying to identify an AUG region?

Categories
Ask Board Games Games

Is this true : «In a 2-player game of Monopoly, there is a 12% chance that the game will go on indefinitely.»

This supposedly «fun fact» was posted on a Facebook game page. One commentator declared a 2-player game of Monopoly a zero-sum game; I stated that the bank acts as a 3rd player, injecting and withdrawing cash. Is there any mathematical validity to the statement that a 2-player game of Monopoly could go on indefinitely? Edit: […]

Categories
Ask Mathematics

Linear transformation for a null space involving a plane

For this question, I am asked to find a matrix in standard coordinates for the linear transformation below. My problem is that I can’t seem to set it up properly. $T: \mathbb{R}^3 \rightarrow \mathbb{R}^3 $ is a linear transformation with $T(0,0,-1)=(1,-1,1)$ and $Null([T])=\{(x,y,z)|2x+y-z=0\}$. My understanding was that the matrix would simply be the following: $$[T]=\left[\begin{array}{rrrr} […]

Categories
Ask Health Medical

Why is the US not implementing large scale random COVID testing to isolate asymptomatic people?

For this question, we will define surveillance as large scale random COVID 19 testing. It is my understanding that: surveillance enables the sorting of asymptomatic patients to be immediately isolated when infected (and reducing further infections). the USA does is not applying said strategy said strategy was successfully engaged in Korea HBR indicates: “Testing is […]

Categories
Ask Mathematics

How to use Runge-Kutta method for this type of system [closed]

I need to solve this differential equation using Runge-Kutta method (2nd order). I had done it with Euler`s Method. $$ \frac{dVolume}{dt}= \frac{Area * dHeight}{dt} = bV – a√H $$ Model of the tank Variables H is the height of water in the tank. Vol is the volume of water in the tank. V is the […]

Categories
Ask Mathematics

Mathematics question

In cricket, it is possible to score one run, four runs, or six runs at a time. Ashley Giles1 was an English first-class cricketer. He played for his country 116 times, including 54 test matches. His test match average was 59 runs. How many ways can 59 runs be scored? Note that, for this question, […]